Wiring example
Regulators > GOV > Control > GOV increase
Regulators > GOV > Control > GOV decrease
G
Outputs
You must assign these outputs under Configure > Input/output. Select the hardware module, then select a digital output to
configure.
Table 6.7
Governor: Relay output hardware
Function I/O Type Details
Regulators > GOV > Control >
GOV increase
Digital output
Variable-
length pulse
The controller activates this output to regulate the governor to
increase the engine speed or power.
Regulators > GOV > Control >
GOV decrease
Digital output
Variable-
length pulse
The controller activates this output to regulate the governor to
decrease the engine speed or power.
Parameters
INFO
To see these parameters, you must assign the functions to digital outputs.
Configure the governor regulation parameters for automatic configuration under Configure > Parameters > Regulators > GOV
relay configuration > Automatic configuration.
These parameters adjust the controller's relay control output.
Parameter
Range Default Notes
Period time
250 ms to 32.5
s
1500 ms
You can make the governor response faster by decreasing the
Period time. However, if the rest of the system is slow anyway,
you can reduce the wear on the relays by increasing the Period
time.
Although a relay controller is capable of fast responses, the
Period time should be similar to the response of the system to
extend the relay life.
Minimum ON time 10 ms to 6.5 s 200 ms
The Minimum ON time must be long enough to ensure that the
governor can detect the shortest pulse that the controller sends
to it. You can increase the Minimum ON time to force a slow
system to respond more to the controller's regulation.
DESIGNER'S HANDBOOK 4189340911K UK Page 195 of 521
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